Have you used your calculator for something that was not really math related?

03062019, 09:29 PM
(This post was last modified: 03062019 09:46 PM by Rogier.)
Post: #101




RE: Have you used your calculator for something that was not really math related?
(03022019 05:31 PM)ijabbott Wrote:(03022019 01:15 PM)Maximilian Hohmann Wrote: Now the cassette players of the time had nonlinear tape counters. There was no 1:1 relation between the playing time of the music and the counter. The relationship between counter value and time was definitely nonlinear. I programmed my HP11 tot convert between the two. For converting counter value to time I had to add a sinuslike function (doing one cycle per sidelength 45 minutes) to a straight line. If anyone is interested I'll post it. Particularly useful for owners of a working early '80s Philips cassette player. Some other nonmath applications: * games; Mastermind, Mahjongscores (both posted), Blackjack. * dice (like many others) * medical calculations:  multiple categorycounter (for counting white bloodcells by type)  expected lung volumes for a given sex, age & height,  bloodgas analysis  body surface area  glomerular filtration rate (eGFR/MDRD) HP 33E, HP 11C, HP 48 SX, HP 35S 

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